header {
    height: 50px;
    background-color: #313131;
}
header .sp {
    float: left;
    margin-top: 10px;
    margin-left: 40px;
    font-size: 20px;
    color: #9d9992;
}
header .adm{
    float: right;
    margin-top: 10px;
    margin-right: 80px;
    font-size: 20px;
    color: #9d9992;
}
.buttom {
    height: 50px;
    background-color: #313131;
    font-size: 20px;
    color: #9d9992;
    padding-left: 40px;
    padding-top: 10px;
}

a {
    color: #666;
    text-decoration: none
}

a:hover {
    color: #c81623
}
* {
    margin: 0;
    padding: 0;
    /* css3盒子模型 */
    box-sizing: border-box;
}
li {
    list-style: none
}

.center {
    margin: auto 0;
    padding-top: 20px;
    background-color: #ffffff;
    height: 653px;
}


form {
    width: 300px;
    height: 600px;
    position: relative;
    left: 650px;
    top: 50px;
    font-size: 20px;
}
li {
    margin: 5px;
}
li input{
    float: right;
}
li a{
    width: 60px;
    height: 30px;
    margin-left: 100px;
    margin-top: -3px;
    border: 1px solid #767676;
    background-color: #efefef;
    padding: 1px 5px;
}
button{
    width: 60px;
    height: 30px;
    font-size: 20px;
}
